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select productline, P.productcode, productname, (OD.priceeach - P.buyprice) as ProfitMargin
from Products P, OrderDetails OD
where P.productcode = OD.productcode and productline like '%Cars%'
order by ProfitMargin desc
當我運行它時,出現錯誤。它說「太少參數。預計1.」 我的代碼有什麼問題嗎?SQL錯誤(太少參數)